27442633164 has 24 divisors (see below), whose sum is σ = 65395212288. Its totient is φ = 8952915600.

The previous prime is 27442633151. The next prime is 27442633181. The reversal of 27442633164 is 46133624472.

It is a super-2 number, since 2×27442633164² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24328012 + ... + 24329139.

It is an arithmetic number, because the mean of its divisors is an integer number (2724800512).

Almost surely, 2^27442633164 is an apocalyptic number.

It is an amenable number.

27442633164 is an abundant number, since it is smaller than the sum of its proper divisors (37952579124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27442633164 is a wasteful number, since it uses less digits than its factorization.

27442633164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48657205 (or 48657203 counting only the distinct ones).

The product of its digits is 580608, while the sum is 42.

The spelling of 27442633164 in words is "twenty-seven billion, four hundred forty-two million, six hundred thirty-three thousand, one hundred sixty-four".